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<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright 2009 Red Hat, Inc.</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * Red Hat licenses this file to you under the Apache License, version 2.0</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> * (the "License"); you may not use this file except in compliance with the</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * License.  You may obtain a copy of the License at:</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *    <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * License for the specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * under the License.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <strong class="jxr_keyword">package</strong> org.jboss.netty.channel.socket.nio;
<a class="jxr_linenumber" name="17" href="#17">17</a>  
<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.jboss.netty.channel.Channels.*;
<a class="jxr_linenumber" name="19" href="#19">19</a>  
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> java.net.ConnectException;
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.net.SocketAddress;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.nio.channels.ClosedChannelException;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.nio.channels.SelectionKey;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.nio.channels.Selector;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.util.Iterator;
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> java.util.Queue;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.util.Set;
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> java.util.concurrent.Executor;
<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> java.util.concurrent.ExecutorService;
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> java.util.concurrent.atomic.AtomicBoolean;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> java.util.concurrent.atomic.AtomicInteger;
<a class="jxr_linenumber" name="33" href="#33">33</a>  
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.AbstractChannelSink;
<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelEvent;
<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelException;
<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelFuture;
<a class="jxr_linenumber" name="38" href="#38">38</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelFutureListener;
<a class="jxr_linenumber" name="39" href="#39">39</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelPipeline;
<a class="jxr_linenumber" name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelState;
<a class="jxr_linenumber" name="41" href="#41">41</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelStateEvent;
<a class="jxr_linenumber" name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.MessageEvent;
<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.logging.InternalLogger;
<a class="jxr_linenumber" name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.logging.InternalLoggerFactory;
<a class="jxr_linenumber" name="45" href="#45">45</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.util.ThreadRenamingRunnable;
<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.util.internal.DeadLockProofWorker;
<a class="jxr_linenumber" name="47" href="#47">47</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.util.internal.LinkedTransferQueue;
<a class="jxr_linenumber" name="48" href="#48">48</a>  
<a class="jxr_linenumber" name="49" href="#49">49</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="51" href="#51">51</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="http://www.jboss.org/netty/" target="alexandria_uri">http://www.jboss.org/netty/</a>"&gt;The Netty Project&lt;/a&gt;</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="http://gleamynode.net/" target="alexandria_uri">http://gleamynode.net/</a>"&gt;Trustin Lee&lt;/a&gt;</em>
<a class="jxr_linenumber" name="53" href="#53">53</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="54" href="#54">54</a>  <em class="jxr_javadoccomment"> * @version $Rev: 2144 $, $Date: 2010-02-09 12:41:12 +0900 (Tue, 09 Feb 2010) $</em>
<a class="jxr_linenumber" name="55" href="#55">55</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="56" href="#56">56</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="57" href="#57">57</a>  <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketPipelineSink.html">NioClientSocketPipelineSink</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/jboss/netty/channel/AbstractChannelSink.html">AbstractChannelSink</a> {
<a class="jxr_linenumber" name="58" href="#58">58</a>  
<a class="jxr_linenumber" name="59" href="#59">59</a>      <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/jboss/netty/logging/InternalLogger.html">InternalLogger</a> logger =
<a class="jxr_linenumber" name="60" href="#60">60</a>          InternalLoggerFactory.getInstance(NioClientSocketPipelineSink.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="61" href="#61">61</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> AtomicInteger nextId = <strong class="jxr_keyword">new</strong> AtomicInteger();
<a class="jxr_linenumber" name="62" href="#62">62</a>  
<a class="jxr_linenumber" name="63" href="#63">63</a>      <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> id = nextId.incrementAndGet();
<a class="jxr_linenumber" name="64" href="#64">64</a>      <strong class="jxr_keyword">final</strong> Executor bossExecutor;
<a class="jxr_linenumber" name="65" href="#65">65</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioServerSocketPipelineSink.html">Boss</a> boss = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioServerSocketPipelineSink.html">Boss</a>();
<a class="jxr_linenumber" name="66" href="#66">66</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioWorker.html">NioWorker</a>[] workers;
<a class="jxr_linenumber" name="67" href="#67">67</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicInteger workerIndex = <strong class="jxr_keyword">new</strong> AtomicInteger();
<a class="jxr_linenumber" name="68" href="#68">68</a>  
<a class="jxr_linenumber" name="69" href="#69">69</a>      <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketPipelineSink.html">NioClientSocketPipelineSink</a>(
<a class="jxr_linenumber" name="70" href="#70">70</a>              Executor bossExecutor, Executor workerExecutor, <strong class="jxr_keyword">int</strong> workerCount) {
<a class="jxr_linenumber" name="71" href="#71">71</a>          <strong class="jxr_keyword">this</strong>.bossExecutor = bossExecutor;
<a class="jxr_linenumber" name="72" href="#72">72</a>          workers = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioWorker.html">NioWorker</a>[workerCount];
<a class="jxr_linenumber" name="73" href="#73">73</a>          <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; workers.length; i ++) {
<a class="jxr_linenumber" name="74" href="#74">74</a>              workers[i] = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioWorker.html">NioWorker</a>(id, i + 1, workerExecutor);
<a class="jxr_linenumber" name="75" href="#75">75</a>          }
<a class="jxr_linenumber" name="76" href="#76">76</a>      }
<a class="jxr_linenumber" name="77" href="#77">77</a>  
<a class="jxr_linenumber" name="78" href="#78">78</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> eventSunk(
<a class="jxr_linenumber" name="79" href="#79">79</a>              <a href="../../../../../../org/jboss/netty/channel/ChannelPipeline.html">ChannelPipeline</a> pipeline, <a href="../../../../../../org/jboss/netty/channel/ChannelEvent.html">ChannelEvent</a> e) <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="80" href="#80">80</a>          <strong class="jxr_keyword">if</strong> (e instanceof ChannelStateEvent) {
<a class="jxr_linenumber" name="81" href="#81">81</a>              <a href="../../../../../../org/jboss/netty/channel/ChannelStateEvent.html">ChannelStateEvent</a> event = (ChannelStateEvent) e;
<a class="jxr_linenumber" name="82" href="#82">82</a>              <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> channel =
<a class="jxr_linenumber" name="83" href="#83">83</a>                  (<a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a>) event.getChannel();
<a class="jxr_linenumber" name="84" href="#84">84</a>              <a href="../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> future = event.getFuture();
<a class="jxr_linenumber" name="85" href="#85">85</a>              <a href="../../../../../../org/jboss/netty/channel/ChannelState.html">ChannelState</a> state = event.getState();
<a class="jxr_linenumber" name="86" href="#86">86</a>              Object value = event.getValue();
<a class="jxr_linenumber" name="87" href="#87">87</a>  
<a class="jxr_linenumber" name="88" href="#88">88</a>              <strong class="jxr_keyword">switch</strong> (state) {
<a class="jxr_linenumber" name="89" href="#89">89</a>              <strong class="jxr_keyword">case</strong> OPEN:
<a class="jxr_linenumber" name="90" href="#90">90</a>                  <strong class="jxr_keyword">if</strong> (Boolean.FALSE.equals(value)) {
<a class="jxr_linenumber" name="91" href="#91">91</a>                      channel.worker.close(channel, future);
<a class="jxr_linenumber" name="92" href="#92">92</a>                  }
<a class="jxr_linenumber" name="93" href="#93">93</a>                  <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="94" href="#94">94</a>              <strong class="jxr_keyword">case</strong> BOUND:
<a class="jxr_linenumber" name="95" href="#95">95</a>                  <strong class="jxr_keyword">if</strong> (value != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="96" href="#96">96</a>                      bind(channel, future, (SocketAddress) value);
<a class="jxr_linenumber" name="97" href="#97">97</a>                  } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="98" href="#98">98</a>                      channel.worker.close(channel, future);
<a class="jxr_linenumber" name="99" href="#99">99</a>                  }
<a class="jxr_linenumber" name="100" href="#100">100</a>                 <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="101" href="#101">101</a>             <strong class="jxr_keyword">case</strong> CONNECTED:
<a class="jxr_linenumber" name="102" href="#102">102</a>                 <strong class="jxr_keyword">if</strong> (value != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="103" href="#103">103</a>                     connect(channel, future, (SocketAddress) value);
<a class="jxr_linenumber" name="104" href="#104">104</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="105" href="#105">105</a>                     channel.worker.close(channel, future);
<a class="jxr_linenumber" name="106" href="#106">106</a>                 }
<a class="jxr_linenumber" name="107" href="#107">107</a>                 <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="108" href="#108">108</a>             <strong class="jxr_keyword">case</strong> INTEREST_OPS:
<a class="jxr_linenumber" name="109" href="#109">109</a>                 channel.worker.setInterestOps(channel, future, ((Integer) value).intValue());
<a class="jxr_linenumber" name="110" href="#110">110</a>                 <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="111" href="#111">111</a>             }
<a class="jxr_linenumber" name="112" href="#112">112</a>         } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof MessageEvent) {
<a class="jxr_linenumber" name="113" href="#113">113</a>             <a href="../../../../../../org/jboss/netty/channel/MessageEvent.html">MessageEvent</a> event = (MessageEvent) e;
<a class="jxr_linenumber" name="114" href="#114">114</a>             <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioSocketChannel.html">NioSocketChannel</a> channel = (NioSocketChannel) event.getChannel();
<a class="jxr_linenumber" name="115" href="#115">115</a>             <strong class="jxr_keyword">boolean</strong> offered = channel.writeBuffer.offer(event);
<a class="jxr_linenumber" name="116" href="#116">116</a>             assert offered;
<a class="jxr_linenumber" name="117" href="#117">117</a>             channel.worker.writeFromUserCode(channel);
<a class="jxr_linenumber" name="118" href="#118">118</a>         }
<a class="jxr_linenumber" name="119" href="#119">119</a>     }
<a class="jxr_linenumber" name="120" href="#120">120</a> 
<a class="jxr_linenumber" name="121" href="#121">121</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> bind(
<a class="jxr_linenumber" name="122" href="#122">122</a>             <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> channel, <a href="../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> future,
<a class="jxr_linenumber" name="123" href="#123">123</a>             SocketAddress localAddress) {
<a class="jxr_linenumber" name="124" href="#124">124</a>         <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="125" href="#125">125</a>             channel.socket.socket().bind(localAddress);
<a class="jxr_linenumber" name="126" href="#126">126</a>             channel.boundManually = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="127" href="#127">127</a>             channel.setBound();
<a class="jxr_linenumber" name="128" href="#128">128</a>             future.setSuccess();
<a class="jxr_linenumber" name="129" href="#129">129</a>             fireChannelBound(channel, channel.getLocalAddress());
<a class="jxr_linenumber" name="130" href="#130">130</a>         } <strong class="jxr_keyword">catch</strong> (Throwable t) {
<a class="jxr_linenumber" name="131" href="#131">131</a>             future.setFailure(t);
<a class="jxr_linenumber" name="132" href="#132">132</a>             fireExceptionCaught(channel, t);
<a class="jxr_linenumber" name="133" href="#133">133</a>         }
<a class="jxr_linenumber" name="134" href="#134">134</a>     }
<a class="jxr_linenumber" name="135" href="#135">135</a> 
<a class="jxr_linenumber" name="136" href="#136">136</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> connect(
<a class="jxr_linenumber" name="137" href="#137">137</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> channel, <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> cf,
<a class="jxr_linenumber" name="138" href="#138">138</a>             SocketAddress remoteAddress) {
<a class="jxr_linenumber" name="139" href="#139">139</a>         <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="140" href="#140">140</a>             <strong class="jxr_keyword">if</strong> (channel.socket.connect(remoteAddress)) {
<a class="jxr_linenumber" name="141" href="#141">141</a>                 channel.worker.register(channel, cf);
<a class="jxr_linenumber" name="142" href="#142">142</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="143" href="#143">143</a>                 channel.getCloseFuture().addListener(<strong class="jxr_keyword">new</strong> ChannelFutureListener() {
<a class="jxr_linenumber" name="144" href="#144">144</a>                     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> operationComplete(<a href="../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> f)
<a class="jxr_linenumber" name="145" href="#145">145</a>                             <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="146" href="#146">146</a>                         <strong class="jxr_keyword">if</strong> (!cf.isDone()) {
<a class="jxr_linenumber" name="147" href="#147">147</a>                             cf.setFailure(<strong class="jxr_keyword">new</strong> ClosedChannelException());
<a class="jxr_linenumber" name="148" href="#148">148</a>                         }
<a class="jxr_linenumber" name="149" href="#149">149</a>                     }
<a class="jxr_linenumber" name="150" href="#150">150</a>                 });
<a class="jxr_linenumber" name="151" href="#151">151</a>                 cf.addListener(ChannelFutureListener.CLOSE_ON_FAILURE);
<a class="jxr_linenumber" name="152" href="#152">152</a>                 channel.connectFuture = cf;
<a class="jxr_linenumber" name="153" href="#153">153</a>                 boss.register(channel);
<a class="jxr_linenumber" name="154" href="#154">154</a>             }
<a class="jxr_linenumber" name="155" href="#155">155</a> 
<a class="jxr_linenumber" name="156" href="#156">156</a>         } <strong class="jxr_keyword">catch</strong> (Throwable t) {
<a class="jxr_linenumber" name="157" href="#157">157</a>             cf.setFailure(t);
<a class="jxr_linenumber" name="158" href="#158">158</a>             fireExceptionCaught(channel, t);
<a class="jxr_linenumber" name="159" href="#159">159</a>             channel.worker.close(channel, succeededFuture(channel));
<a class="jxr_linenumber" name="160" href="#160">160</a>         }
<a class="jxr_linenumber" name="161" href="#161">161</a>     }
<a class="jxr_linenumber" name="162" href="#162">162</a> 
<a class="jxr_linenumber" name="163" href="#163">163</a>     <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioWorker.html">NioWorker</a> nextWorker() {
<a class="jxr_linenumber" name="164" href="#164">164</a>         <strong class="jxr_keyword">return</strong> workers[Math.abs(
<a class="jxr_linenumber" name="165" href="#165">165</a>                 workerIndex.getAndIncrement() % workers.length)];
<a class="jxr_linenumber" name="166" href="#166">166</a>     }
<a class="jxr_linenumber" name="167" href="#167">167</a> 
<a class="jxr_linenumber" name="168" href="#168">168</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioServerSocketPipelineSink.html">Boss</a> <strong class="jxr_keyword">implements</strong> Runnable {
<a class="jxr_linenumber" name="169" href="#169">169</a> 
<a class="jxr_linenumber" name="170" href="#170">170</a>         <strong class="jxr_keyword">volatile</strong> Selector selector;
<a class="jxr_linenumber" name="171" href="#171">171</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> started;
<a class="jxr_linenumber" name="172" href="#172">172</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicBoolean wakenUp = <strong class="jxr_keyword">new</strong> AtomicBoolean();
<a class="jxr_linenumber" name="173" href="#173">173</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Object startStopLock = <strong class="jxr_keyword">new</strong> Object();
<a class="jxr_linenumber" name="174" href="#174">174</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Queue&lt;Runnable&gt; registerTaskQueue = <strong class="jxr_keyword">new</strong> LinkedTransferQueue&lt;Runnable&gt;();
<a class="jxr_linenumber" name="175" href="#175">175</a> 
<a class="jxr_linenumber" name="176" href="#176">176</a>         <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioServerSocketPipelineSink.html">Boss</a>() {
<a class="jxr_linenumber" name="177" href="#177">177</a>             <strong class="jxr_keyword">super</strong>();
<a class="jxr_linenumber" name="178" href="#178">178</a>         }
<a class="jxr_linenumber" name="179" href="#179">179</a> 
<a class="jxr_linenumber" name="180" href="#180">180</a>         <strong class="jxr_keyword">void</strong> register(<a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> channel) {
<a class="jxr_linenumber" name="181" href="#181">181</a>             Runnable registerTask = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioWorker.html">RegisterTask</a>(<strong class="jxr_keyword">this</strong>, channel);
<a class="jxr_linenumber" name="182" href="#182">182</a>             Selector selector;
<a class="jxr_linenumber" name="183" href="#183">183</a> 
<a class="jxr_linenumber" name="184" href="#184">184</a>             <strong class="jxr_keyword">synchronized</strong> (startStopLock) {
<a class="jxr_linenumber" name="185" href="#185">185</a>                 <strong class="jxr_keyword">if</strong> (!started) {
<a class="jxr_linenumber" name="186" href="#186">186</a>                     <em class="jxr_comment">// Open a selector if this worker didn't start yet.</em>
<a class="jxr_linenumber" name="187" href="#187">187</a>                     <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="188" href="#188">188</a>                         <strong class="jxr_keyword">this</strong>.selector = selector =  Selector.open();
<a class="jxr_linenumber" name="189" href="#189">189</a>                     } <strong class="jxr_keyword">catch</strong> (Throwable t) {
<a class="jxr_linenumber" name="190" href="#190">190</a>                         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/channel/ChannelException.html">ChannelException</a>(
<a class="jxr_linenumber" name="191" href="#191">191</a>                                 <span class="jxr_string">"Failed to create a selector."</span>, t);
<a class="jxr_linenumber" name="192" href="#192">192</a>                     }
<a class="jxr_linenumber" name="193" href="#193">193</a> 
<a class="jxr_linenumber" name="194" href="#194">194</a>                     <em class="jxr_comment">// Start the worker thread with the new Selector.</em>
<a class="jxr_linenumber" name="195" href="#195">195</a>                     <strong class="jxr_keyword">boolean</strong> success = false;
<a class="jxr_linenumber" name="196" href="#196">196</a>                     <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="197" href="#197">197</a>                         DeadLockProofWorker.start(
<a class="jxr_linenumber" name="198" href="#198">198</a>                                 bossExecutor,
<a class="jxr_linenumber" name="199" href="#199">199</a>                                 <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/util/ThreadRenamingRunnable.html">ThreadRenamingRunnable</a>(
<a class="jxr_linenumber" name="200" href="#200">200</a>                                         <strong class="jxr_keyword">this</strong>, <span class="jxr_string">"New I/O client boss #"</span> + id));
<a class="jxr_linenumber" name="201" href="#201">201</a>                         success = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="202" href="#202">202</a>                     } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="203" href="#203">203</a>                         <strong class="jxr_keyword">if</strong> (!success) {
<a class="jxr_linenumber" name="204" href="#204">204</a>                             <em class="jxr_comment">// Release the Selector if the execution fails.</em>
<a class="jxr_linenumber" name="205" href="#205">205</a>                             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="206" href="#206">206</a>                                 selector.close();
<a class="jxr_linenumber" name="207" href="#207">207</a>                             } <strong class="jxr_keyword">catch</strong> (Throwable t) {
<a class="jxr_linenumber" name="208" href="#208">208</a>                                 logger.warn(<span class="jxr_string">"Failed to close a selector."</span>, t);
<a class="jxr_linenumber" name="209" href="#209">209</a>                             }
<a class="jxr_linenumber" name="210" href="#210">210</a>                             <strong class="jxr_keyword">this</strong>.selector = selector = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="211" href="#211">211</a>                             <em class="jxr_comment">// The method will return to the caller at this point.</em>
<a class="jxr_linenumber" name="212" href="#212">212</a>                         }
<a class="jxr_linenumber" name="213" href="#213">213</a>                     }
<a class="jxr_linenumber" name="214" href="#214">214</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="215" href="#215">215</a>                     <em class="jxr_comment">// Use the existing selector if this worker has been started.</em>
<a class="jxr_linenumber" name="216" href="#216">216</a>                     selector = <strong class="jxr_keyword">this</strong>.selector;
<a class="jxr_linenumber" name="217" href="#217">217</a>                 }
<a class="jxr_linenumber" name="218" href="#218">218</a> 
<a class="jxr_linenumber" name="219" href="#219">219</a>                 assert selector != <strong class="jxr_keyword">null</strong> &amp;&amp; selector.isOpen();
<a class="jxr_linenumber" name="220" href="#220">220</a> 
<a class="jxr_linenumber" name="221" href="#221">221</a>                 started = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="222" href="#222">222</a>                 <strong class="jxr_keyword">boolean</strong> offered = registerTaskQueue.offer(registerTask);
<a class="jxr_linenumber" name="223" href="#223">223</a>                 assert offered;
<a class="jxr_linenumber" name="224" href="#224">224</a>             }
<a class="jxr_linenumber" name="225" href="#225">225</a> 
<a class="jxr_linenumber" name="226" href="#226">226</a>             <strong class="jxr_keyword">if</strong> (wakenUp.compareAndSet(false, <strong class="jxr_keyword">true</strong>)) {
<a class="jxr_linenumber" name="227" href="#227">227</a>                 selector.wakeup();
<a class="jxr_linenumber" name="228" href="#228">228</a>             }
<a class="jxr_linenumber" name="229" href="#229">229</a>         }
<a class="jxr_linenumber" name="230" href="#230">230</a> 
<a class="jxr_linenumber" name="231" href="#231">231</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> run() {
<a class="jxr_linenumber" name="232" href="#232">232</a>             <strong class="jxr_keyword">boolean</strong> shutdown = false;
<a class="jxr_linenumber" name="233" href="#233">233</a>             Selector selector = <strong class="jxr_keyword">this</strong>.selector;
<a class="jxr_linenumber" name="234" href="#234">234</a>             <strong class="jxr_keyword">long</strong> lastConnectTimeoutCheckTimeNanos = System.nanoTime();
<a class="jxr_linenumber" name="235" href="#235">235</a>             <strong class="jxr_keyword">for</strong> (;;) {
<a class="jxr_linenumber" name="236" href="#236">236</a>                 wakenUp.set(false);
<a class="jxr_linenumber" name="237" href="#237">237</a> 
<a class="jxr_linenumber" name="238" href="#238">238</a>                 <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="239" href="#239">239</a>                     <strong class="jxr_keyword">int</strong> selectedKeyCount = selector.select(500);
<a class="jxr_linenumber" name="240" href="#240">240</a> 
<a class="jxr_linenumber" name="241" href="#241">241</a>                     <em class="jxr_comment">// 'wakenUp.compareAndSet(false, true)' is always evaluated</em>
<a class="jxr_linenumber" name="242" href="#242">242</a>                     <em class="jxr_comment">// before calling 'selector.wakeup()' to reduce the wake-up</em>
<a class="jxr_linenumber" name="243" href="#243">243</a>                     <em class="jxr_comment">// overhead. (Selector.wakeup() is an expensive operation.)</em>
<a class="jxr_linenumber" name="244" href="#244">244</a>                     <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="245" href="#245">245</a>                     <em class="jxr_comment">// However, there is a race condition in this approach.</em>
<a class="jxr_linenumber" name="246" href="#246">246</a>                     <em class="jxr_comment">// The race condition is triggered when 'wakenUp' is set to</em>
<a class="jxr_linenumber" name="247" href="#247">247</a>                     <em class="jxr_comment">// true too early.</em>
<a class="jxr_linenumber" name="248" href="#248">248</a>                     <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="249" href="#249">249</a>                     <em class="jxr_comment">// 'wakenUp' is set to true too early if:</em>
<a class="jxr_linenumber" name="250" href="#250">250</a>                     <em class="jxr_comment">// 1) Selector is waken up between 'wakenUp.set(false)' and</em>
<a class="jxr_linenumber" name="251" href="#251">251</a>                     <em class="jxr_comment">//    'selector.select(...)'. (BAD)</em>
<a class="jxr_linenumber" name="252" href="#252">252</a>                     <em class="jxr_comment">// 2) Selector is waken up between 'selector.select(...)' and</em>
<a class="jxr_linenumber" name="253" href="#253">253</a>                     <em class="jxr_comment">//    'if (wakenUp.get()) { ... }'. (OK)</em>
<a class="jxr_linenumber" name="254" href="#254">254</a>                     <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="255" href="#255">255</a>                     <em class="jxr_comment">// In the first case, 'wakenUp' is set to true and the</em>
<a class="jxr_linenumber" name="256" href="#256">256</a>                     <em class="jxr_comment">// following 'selector.select(...)' will wake up immediately.</em>
<a class="jxr_linenumber" name="257" href="#257">257</a>                     <em class="jxr_comment">// Until 'wakenUp' is set to false again in the next round,</em>
<a class="jxr_linenumber" name="258" href="#258">258</a>                     <em class="jxr_comment">// 'wakenUp.compareAndSet(false, true)' will fail, and therefore</em>
<a class="jxr_linenumber" name="259" href="#259">259</a>                     <em class="jxr_comment">// any attempt to wake up the Selector will fail, too, causing</em>
<a class="jxr_linenumber" name="260" href="#260">260</a>                     <em class="jxr_comment">// the following 'selector.select(...)' call to block</em>
<a class="jxr_linenumber" name="261" href="#261">261</a>                     <em class="jxr_comment">// unnecessarily.</em>
<a class="jxr_linenumber" name="262" href="#262">262</a>                     <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="263" href="#263">263</a>                     <em class="jxr_comment">// To fix this problem, we wake up the selector again if wakenUp</em>
<a class="jxr_linenumber" name="264" href="#264">264</a>                     <em class="jxr_comment">// is true immediately after selector.select(...).</em>
<a class="jxr_linenumber" name="265" href="#265">265</a>                     <em class="jxr_comment">// It is inefficient in that it wakes up the selector for both</em>
<a class="jxr_linenumber" name="266" href="#266">266</a>                     <em class="jxr_comment">// the first case (BAD - wake-up required) and the second case</em>
<a class="jxr_linenumber" name="267" href="#267">267</a>                     <em class="jxr_comment">// (OK - no wake-up required).</em>
<a class="jxr_linenumber" name="268" href="#268">268</a> 
<a class="jxr_linenumber" name="269" href="#269">269</a>                     <strong class="jxr_keyword">if</strong> (wakenUp.get()) {
<a class="jxr_linenumber" name="270" href="#270">270</a>                         selector.wakeup();
<a class="jxr_linenumber" name="271" href="#271">271</a>                     }
<a class="jxr_linenumber" name="272" href="#272">272</a> 
<a class="jxr_linenumber" name="273" href="#273">273</a>                     processRegisterTaskQueue();
<a class="jxr_linenumber" name="274" href="#274">274</a> 
<a class="jxr_linenumber" name="275" href="#275">275</a>                     <strong class="jxr_keyword">if</strong> (selectedKeyCount &gt; 0) {
<a class="jxr_linenumber" name="276" href="#276">276</a>                         processSelectedKeys(selector.selectedKeys());
<a class="jxr_linenumber" name="277" href="#277">277</a>                     }
<a class="jxr_linenumber" name="278" href="#278">278</a> 
<a class="jxr_linenumber" name="279" href="#279">279</a>                     <em class="jxr_comment">// Handle connection timeout every 0.5 seconds approximately.</em>
<a class="jxr_linenumber" name="280" href="#280">280</a>                     <strong class="jxr_keyword">long</strong> currentTimeNanos = System.nanoTime();
<a class="jxr_linenumber" name="281" href="#281">281</a>                     <strong class="jxr_keyword">if</strong> (currentTimeNanos - lastConnectTimeoutCheckTimeNanos &gt;= 500 * 1000000L) {
<a class="jxr_linenumber" name="282" href="#282">282</a>                         lastConnectTimeoutCheckTimeNanos = currentTimeNanos;
<a class="jxr_linenumber" name="283" href="#283">283</a>                         processConnectTimeout(selector.keys(), currentTimeNanos);
<a class="jxr_linenumber" name="284" href="#284">284</a>                     }
<a class="jxr_linenumber" name="285" href="#285">285</a> 
<a class="jxr_linenumber" name="286" href="#286">286</a>                     <em class="jxr_comment">// Exit the loop when there's nothing to handle.</em>
<a class="jxr_linenumber" name="287" href="#287">287</a>                     <em class="jxr_comment">// The shutdown flag is used to delay the shutdown of this</em>
<a class="jxr_linenumber" name="288" href="#288">288</a>                     <em class="jxr_comment">// loop to avoid excessive Selector creation when</em>
<a class="jxr_linenumber" name="289" href="#289">289</a>                     <em class="jxr_comment">// connection attempts are made in a one-by-one manner</em>
<a class="jxr_linenumber" name="290" href="#290">290</a>                     <em class="jxr_comment">// instead of concurrent manner.</em>
<a class="jxr_linenumber" name="291" href="#291">291</a>                     <strong class="jxr_keyword">if</strong> (selector.keys().isEmpty()) {
<a class="jxr_linenumber" name="292" href="#292">292</a>                         <strong class="jxr_keyword">if</strong> (shutdown ||
<a class="jxr_linenumber" name="293" href="#293">293</a>                             bossExecutor instanceof ExecutorService &amp;&amp; ((ExecutorService) bossExecutor).isShutdown()) {
<a class="jxr_linenumber" name="294" href="#294">294</a> 
<a class="jxr_linenumber" name="295" href="#295">295</a>                             <strong class="jxr_keyword">synchronized</strong> (startStopLock) {
<a class="jxr_linenumber" name="296" href="#296">296</a>                                 <strong class="jxr_keyword">if</strong> (registerTaskQueue.isEmpty() &amp;&amp; selector.keys().isEmpty()) {
<a class="jxr_linenumber" name="297" href="#297">297</a>                                     started = false;
<a class="jxr_linenumber" name="298" href="#298">298</a>                                     <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="299" href="#299">299</a>                                         selector.close();
<a class="jxr_linenumber" name="300" href="#300">300</a>                                     } <strong class="jxr_keyword">catch</strong> (IOException e) {
<a class="jxr_linenumber" name="301" href="#301">301</a>                                         logger.warn(
<a class="jxr_linenumber" name="302" href="#302">302</a>                                                 <span class="jxr_string">"Failed to close a selector."</span>, e);
<a class="jxr_linenumber" name="303" href="#303">303</a>                                     } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="304" href="#304">304</a>                                         <strong class="jxr_keyword">this</strong>.selector = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="305" href="#305">305</a>                                     }
<a class="jxr_linenumber" name="306" href="#306">306</a>                                     <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="307" href="#307">307</a>                                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="308" href="#308">308</a>                                     shutdown = false;
<a class="jxr_linenumber" name="309" href="#309">309</a>                                 }
<a class="jxr_linenumber" name="310" href="#310">310</a>                             }
<a class="jxr_linenumber" name="311" href="#311">311</a>                         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="312" href="#312">312</a>                             <em class="jxr_comment">// Give one more second.</em>
<a class="jxr_linenumber" name="313" href="#313">313</a>                             shutdown = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="314" href="#314">314</a>                         }
<a class="jxr_linenumber" name="315" href="#315">315</a>                     } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="316" href="#316">316</a>                         shutdown = false;
<a class="jxr_linenumber" name="317" href="#317">317</a>                     }
<a class="jxr_linenumber" name="318" href="#318">318</a>                 } <strong class="jxr_keyword">catch</strong> (Throwable t) {
<a class="jxr_linenumber" name="319" href="#319">319</a>                     logger.warn(
<a class="jxr_linenumber" name="320" href="#320">320</a>                             <span class="jxr_string">"Unexpected exception in the selector loop."</span>, t);
<a class="jxr_linenumber" name="321" href="#321">321</a> 
<a class="jxr_linenumber" name="322" href="#322">322</a>                     <em class="jxr_comment">// Prevent possible consecutive immediate failures.</em>
<a class="jxr_linenumber" name="323" href="#323">323</a>                     <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="324" href="#324">324</a>                         Thread.sleep(1000);
<a class="jxr_linenumber" name="325" href="#325">325</a>                     } <strong class="jxr_keyword">catch</strong> (InterruptedException e) {
<a class="jxr_linenumber" name="326" href="#326">326</a>                         <em class="jxr_comment">// Ignore.</em>
<a class="jxr_linenumber" name="327" href="#327">327</a>                     }
<a class="jxr_linenumber" name="328" href="#328">328</a>                 }
<a class="jxr_linenumber" name="329" href="#329">329</a>             }
<a class="jxr_linenumber" name="330" href="#330">330</a>         }
<a class="jxr_linenumber" name="331" href="#331">331</a> 
<a class="jxr_linenumber" name="332" href="#332">332</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> processRegisterTaskQueue() {
<a class="jxr_linenumber" name="333" href="#333">333</a>             <strong class="jxr_keyword">for</strong> (;;) {
<a class="jxr_linenumber" name="334" href="#334">334</a>                 <strong class="jxr_keyword">final</strong> Runnable task = registerTaskQueue.poll();
<a class="jxr_linenumber" name="335" href="#335">335</a>                 <strong class="jxr_keyword">if</strong> (task == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="336" href="#336">336</a>                     <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="337" href="#337">337</a>                 }
<a class="jxr_linenumber" name="338" href="#338">338</a> 
<a class="jxr_linenumber" name="339" href="#339">339</a>                 task.run();
<a class="jxr_linenumber" name="340" href="#340">340</a>             }
<a class="jxr_linenumber" name="341" href="#341">341</a>         }
<a class="jxr_linenumber" name="342" href="#342">342</a> 
<a class="jxr_linenumber" name="343" href="#343">343</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> processSelectedKeys(Set&lt;SelectionKey&gt; selectedKeys) {
<a class="jxr_linenumber" name="344" href="#344">344</a>             <strong class="jxr_keyword">for</strong> (Iterator&lt;SelectionKey&gt; i = selectedKeys.iterator(); i.hasNext();) {
<a class="jxr_linenumber" name="345" href="#345">345</a>                 SelectionKey k = i.next();
<a class="jxr_linenumber" name="346" href="#346">346</a>                 i.remove();
<a class="jxr_linenumber" name="347" href="#347">347</a> 
<a class="jxr_linenumber" name="348" href="#348">348</a>                 <strong class="jxr_keyword">if</strong> (!k.isValid()) {
<a class="jxr_linenumber" name="349" href="#349">349</a>                     close(k);
<a class="jxr_linenumber" name="350" href="#350">350</a>                     <strong class="jxr_keyword">continue</strong>;
<a class="jxr_linenumber" name="351" href="#351">351</a>                 }
<a class="jxr_linenumber" name="352" href="#352">352</a> 
<a class="jxr_linenumber" name="353" href="#353">353</a>                 <strong class="jxr_keyword">if</strong> (k.isConnectable()) {
<a class="jxr_linenumber" name="354" href="#354">354</a>                     connect(k);
<a class="jxr_linenumber" name="355" href="#355">355</a>                 }
<a class="jxr_linenumber" name="356" href="#356">356</a>             }
<a class="jxr_linenumber" name="357" href="#357">357</a>         }
<a class="jxr_linenumber" name="358" href="#358">358</a> 
<a class="jxr_linenumber" name="359" href="#359">359</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> processConnectTimeout(Set&lt;SelectionKey&gt; keys, <strong class="jxr_keyword">long</strong> currentTimeNanos) {
<a class="jxr_linenumber" name="360" href="#360">360</a>             ConnectException cause = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="361" href="#361">361</a>             <strong class="jxr_keyword">for</strong> (SelectionKey k: keys) {
<a class="jxr_linenumber" name="362" href="#362">362</a>                 <strong class="jxr_keyword">if</strong> (!k.isValid()) {
<a class="jxr_linenumber" name="363" href="#363">363</a>                     <strong class="jxr_keyword">continue</strong>;
<a class="jxr_linenumber" name="364" href="#364">364</a>                 }
<a class="jxr_linenumber" name="365" href="#365">365</a> 
<a class="jxr_linenumber" name="366" href="#366">366</a>                 <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> ch = (NioClientSocketChannel) k.attachment();
<a class="jxr_linenumber" name="367" href="#367">367</a>                 <strong class="jxr_keyword">if</strong> (ch.connectDeadlineNanos &gt; 0 &amp;&amp;
<a class="jxr_linenumber" name="368" href="#368">368</a>                         currentTimeNanos &gt;= ch.connectDeadlineNanos) {
<a class="jxr_linenumber" name="369" href="#369">369</a> 
<a class="jxr_linenumber" name="370" href="#370">370</a>                     <strong class="jxr_keyword">if</strong> (cause == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="371" href="#371">371</a>                         cause = <strong class="jxr_keyword">new</strong> ConnectException(<span class="jxr_string">"connection timed out"</span>);
<a class="jxr_linenumber" name="372" href="#372">372</a>                     }
<a class="jxr_linenumber" name="373" href="#373">373</a> 
<a class="jxr_linenumber" name="374" href="#374">374</a>                     ch.connectFuture.setFailure(cause);
<a class="jxr_linenumber" name="375" href="#375">375</a>                     fireExceptionCaught(ch, cause);
<a class="jxr_linenumber" name="376" href="#376">376</a>                     ch.worker.close(ch, succeededFuture(ch));
<a class="jxr_linenumber" name="377" href="#377">377</a>                 }
<a class="jxr_linenumber" name="378" href="#378">378</a>             }
<a class="jxr_linenumber" name="379" href="#379">379</a>         }
<a class="jxr_linenumber" name="380" href="#380">380</a> 
<a class="jxr_linenumber" name="381" href="#381">381</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> connect(SelectionKey k) {
<a class="jxr_linenumber" name="382" href="#382">382</a>             <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> ch = (NioClientSocketChannel) k.attachment();
<a class="jxr_linenumber" name="383" href="#383">383</a>             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="384" href="#384">384</a>                 <strong class="jxr_keyword">if</strong> (ch.socket.finishConnect()) {
<a class="jxr_linenumber" name="385" href="#385">385</a>                     k.cancel();
<a class="jxr_linenumber" name="386" href="#386">386</a>                     ch.worker.register(ch, ch.connectFuture);
<a class="jxr_linenumber" name="387" href="#387">387</a>                 }
<a class="jxr_linenumber" name="388" href="#388">388</a>             } <strong class="jxr_keyword">catch</strong> (Throwable t) {
<a class="jxr_linenumber" name="389" href="#389">389</a>                 ch.connectFuture.setFailure(t);
<a class="jxr_linenumber" name="390" href="#390">390</a>                 fireExceptionCaught(ch, t);
<a class="jxr_linenumber" name="391" href="#391">391</a>                 k.cancel(); <em class="jxr_comment">// Some JDK implementations run into an infinite loop without this.</em>
<a class="jxr_linenumber" name="392" href="#392">392</a>                 ch.worker.close(ch, succeededFuture(ch));
<a class="jxr_linenumber" name="393" href="#393">393</a>             }
<a class="jxr_linenumber" name="394" href="#394">394</a>         }
<a class="jxr_linenumber" name="395" href="#395">395</a> 
<a class="jxr_linenumber" name="396" href="#396">396</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> close(SelectionKey k) {
<a class="jxr_linenumber" name="397" href="#397">397</a>             <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> ch = (NioClientSocketChannel) k.attachment();
<a class="jxr_linenumber" name="398" href="#398">398</a>             ch.worker.close(ch, succeededFuture(ch));
<a class="jxr_linenumber" name="399" href="#399">399</a>         }
<a class="jxr_linenumber" name="400" href="#400">400</a>     }
<a class="jxr_linenumber" name="401" href="#401">401</a> 
<a class="jxr_linenumber" name="402" href="#402">402</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioWorker.html">RegisterTask</a> <strong class="jxr_keyword">implements</strong> Runnable {
<a class="jxr_linenumber" name="403" href="#403">403</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioServerSocketPipelineSink.html">Boss</a> boss;
<a class="jxr_linenumber" name="404" href="#404">404</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> channel;
<a class="jxr_linenumber" name="405" href="#405">405</a> 
<a class="jxr_linenumber" name="406" href="#406">406</a>         <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioWorker.html">RegisterTask</a>(<a href="../../../../../../org/jboss/netty/channel/socket/nio/NioServerSocketPipelineSink.html">Boss</a> boss, <a href="../../../../../../org/jboss/netty/channel/socket/nio/NioClientSocketChannel.html">NioClientSocketChannel</a> channel) {
<a class="jxr_linenumber" name="407" href="#407">407</a>             <strong class="jxr_keyword">this</strong>.boss = boss;
<a class="jxr_linenumber" name="408" href="#408">408</a>             <strong class="jxr_keyword">this</strong>.channel = channel;
<a class="jxr_linenumber" name="409" href="#409">409</a>         }
<a class="jxr_linenumber" name="410" href="#410">410</a> 
<a class="jxr_linenumber" name="411" href="#411">411</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> run() {
<a class="jxr_linenumber" name="412" href="#412">412</a>             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="413" href="#413">413</a>                 channel.socket.register(
<a class="jxr_linenumber" name="414" href="#414">414</a>                         boss.selector, SelectionKey.OP_CONNECT, channel);
<a class="jxr_linenumber" name="415" href="#415">415</a>             } <strong class="jxr_keyword">catch</strong> (ClosedChannelException e) {
<a class="jxr_linenumber" name="416" href="#416">416</a>                 channel.worker.close(channel, succeededFuture(channel));
<a class="jxr_linenumber" name="417" href="#417">417</a>             }
<a class="jxr_linenumber" name="418" href="#418">418</a> 
<a class="jxr_linenumber" name="419" href="#419">419</a>             <strong class="jxr_keyword">int</strong> connectTimeout = channel.getConfig().getConnectTimeoutMillis();
<a class="jxr_linenumber" name="420" href="#420">420</a>             <strong class="jxr_keyword">if</strong> (connectTimeout &gt; 0) {
<a class="jxr_linenumber" name="421" href="#421">421</a>                 channel.connectDeadlineNanos = System.nanoTime() + connectTimeout * 1000000L;
<a class="jxr_linenumber" name="422" href="#422">422</a>             }
<a class="jxr_linenumber" name="423" href="#423">423</a>         }
<a class="jxr_linenumber" name="424" href="#424">424</a>     }
<a class="jxr_linenumber" name="425" href="#425">425</a> }
</pre>
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